Guide

Passport validity rules: the six-month rule explained

Last reviewed 12 July 2026

One of the most common reasons travellers are denied boarding has nothing to do with visas — it’s a passport that doesn’t have enough validity left. Many countries require your passport to be valid for at least six months beyond your travel dates, and some also demand blank pages. This guide explains the rules, why they exist, and how to make sure your passport won’t stop you at the gate.

What the six-month rule means

The “six-month rule” requires your passport to remain valid for at least six months after a reference date. Countries differ on that reference date:

Six months beyond entry — the most common: your passport must be valid for six months from the day you arrive. Widely used across Asia and the Middle East.
Six months beyond departure — measured from the day you leave the country.
Three months beyond departure — the Schengen standard for many visitors.
Valid for the duration of stay — the most lenient, used by some countries.

Airlines enforce this, not just immigration. Check-in staff will often refuse to board you if your passport fails the destination’s rule — before you ever reach a border officer. When in doubt, renew early.

Why the rule exists

Countries want to avoid a visitor’s passport expiring while they are still in the country, which complicates identification and departure. The six-month buffer gives a margin for extended or disrupted stays. It applies regardless of how short your trip is — a weekend visit can still require six months of validity.

Typical requirements at a glance

Common passport validity standards (verify per destination)
Rule	Reference point	Where it’s common
6 months	Beyond date of entry	Much of Asia, Middle East, Africa
3 months	Beyond intended departure	Schengen area & some others
Duration of stay	Whole trip	Some countries (e.g. often UK, US visitors)

Blank page requirements

Many countries also require one or more completely blank pages for entry and exit stamps or a visa sticker. Common requirements are one to two blank pages; some countries specify two facing pages. If your passport is nearly full, you may be refused entry even with plenty of validity remaining. Endorsement or amendment pages usually don’t count as “visa pages.”

How to avoid problems

Check the exact rule for every country on your itinerary, including transit points.
Count six months from your entry date, not today — and from the latest date if you have multiple destinations.
Confirm you have enough blank pages.
Renew early if you’re close — renewals can take weeks, and a new passport also means updating any eVisa, ESTA or ETA linked to the old one.
Make sure the passport number on your visa or authorisation matches the passport you’ll actually travel on.

A new passport breaks the link to electronic authorisations. ESTAs, ETAs and many eVisas are tied to a specific passport number. Renew, then re-apply for the authorisation before you fly.

Common questions

Does the six months count from departure or entry?

It varies by country. Most measure six months from your entry date; some from departure. Always check the specific destination.

My trip is only a few days — does the rule still apply?

Yes. The validity requirement is independent of how long you stay.

How many blank pages do I need?

Commonly one to two, but some countries require two facing pages. Check before you travel.

I renewed my passport — what about my ESTA/eVisa?

They’re linked to the old passport. Apply for a new authorisation matching your new passport.

Passport validity and blank-page rules are set by each destination and can change. Always confirm on the official government portal before you travel.

← All travel guides · Related: why applications get rejected, visa photo requirements, how eVisas work, visa-free travel.